Commands used for WAN configuration and testing connectivity

Last Updated : Nov 06, 2012 |

After configuring the new interface, you can perform the following tests to verify that the new interface is operating correctly.

  • For E1/T1 interfaces, use the show controllers command to view the status of the interface’s controller. Verify that the controller is up, and that all error counters do not increase.

    For all serial interfaces (E1/T1 and USB-modem), use the show interfaces serial command to verify that the interface and line protocol are both up. For example:

    Serial x/y:z is up, line protocol is up

  • For the USB-modem interface and the Fast Ethernet interface, use the show interfaces command to verify that all line signals are up. For example:

    DCD = up DSR = up DTR = up RTS = up CTS = up

  • Use the show frame-relay pvc command to view detailed PVC information, or show frame-relay pvc brief for a brief summary of PVC configuration.

  • Use the following commands for more information about frame relay configuration:

    • show frame-relay fragment. Display frame relay fragmentation statistics and configuration on all PVCs associated with the interface.

    • show frame-relay lmi. Display LMI statistics for the interface.

    • show frame-relay map. Display a summary table of frame relay sub-interfaces and DLCIs associated with the sub-interfaces.

    • show frame-relay traffic. Display frame relay protocol statistics, including ARP requests and replies sent and received over the interface.

    • show map-class frame-relay. Display the map-class Frame Relay table.

  • Use the show traffic-shape command to view traffic shaping and frame relay traffic shaping configuration parameters for all interfaces.

  • Use the show ip interface command to display information about IP interfaces. To display information about a specific interface, include the name of the interface as an argument. To display information about the interface of a specific IP address, include the IP address as an argument.

  • Enter show running-config to display the configuration running on the device.

  • Enter show startup-config to display the configuration loaded at startup.

  • Use the ping command to send ICMP echo request packets from the Branch Gateway to the interface Serial peer IP address and verify that it responds.